DE102020121823A1 - Hand pliers designed to carry out crimping, as well as hand pliers with a pliers head - Google Patents

Abstract

The invention relates to hand-held pliers (1) designed for performing a crimping operation, having a fixed and a movable pliers arm (4, 5) and a first and a second crimping jaw (20, 21), the first crimping jaw (20) being driven by a drive plunger (24 ) is applied. In order to further improve a hand tool of the type in question with a design that is favorable in terms of handling, it is proposed that the second crimping jaw (21) be movable back against spring force in a crimping jaw receptacle (19) of the hand-held pliers (1). The invention also relates to hand-held pliers (1) with a pliers head which is formed by pliers jaws (2, 3) which can be pivoted relative to one another and which interact, for example, for stripping, the pliers head having a broad side (B), a narrow side (S) and a front side ( T), wherein a pivot axis (x) of the pliers jaws (2, 3) runs at right angles to an extension of the broad side (B) and the narrow side (S) extends approximately at right angles to the broad side (B), with crimping jaws (20 , 21) are provided for performing a crimping. An improved manual pliers can be achieved in that a crimping opening (18) formed by the crimping jaws (20, 21) opens into the narrow side (S).

Description

field of technology

The invention relates to hand-held pliers designed to carry out a crimping operation, having a fixed and a movable pliers arm and a first and a second crimping jaw, the first crimping jaw being acted upon by a drive plunger.

The invention also relates to hand-held pliers with a pliers head which is formed by pliers jaws which can be pivoted relative to one another and which interact, for example, for stripping, the pliers head having a broad side, a narrow side and a front side, with a pivot axis of the pliers jaws also running at right angles to an extension of the broad side and the narrow side extends approximately at right angles to the broad side, with crimping jaws also being provided for carrying out a crimping.

State of the art

Hand-held pliers of the type in question are known, in particular for use as so-called crimping pliers for crimping or pressing compacts, such as ferrules, for example, on stripped ends of electrical cables. For example, on the DE 10 2018 101159 A1 referred.

In addition, hand-held pliers are known, which are designed in particular as pliers-like stripping tools, but at the same time also allow crimping, for example, of the previously stripped cable end with a ferrule using the same tool. Such a hand tool is, for example, from EP 0 540 880 B1 ( U.S. 5,500,998 ) famous.

Summary of the Invention

In view of the prior art described above, the object of the invention is to further improve a hand tool of the type in question with a design that is favorable in terms of handling.

According to a first idea of the invention, a possible solution to the problem is provided by hand-held pliers in which the second crimping jaw can be moved back against spring force in a crimping-jaw receptacle of the hand-held pliers.

The spring force can be applied directly by the second crimping jaw, in particular by a section of the second crimping jaw or alternatively by a separate part. For example, the second crimping jaw can have a correspondingly acting spring element that is further molded on, for example, directly or indirectly. In addition, the spring element applying the spring force can be an element separate from the second crimping die, for example a metal or plastic spring, e.g. B. in the form of a cylinder compression spring or a torsion spring. A plastic spring in the form of a solid element that can be elastically compressed and expanded is preferred in this regard, further, for example, in the form of a foam element. In this respect, a polyurethane block element can more preferably serve as a spring element against which the second crimping jaw acts, in particular during the course of crimping.

The return movement or evasive movement of the second crimping jaw in the course of crimping, which is made possible against spring force, enables pressing of compacts with different dimensions (diameters, if applicable) viewed in the direction of displacement, with a substantially constant displacement path of the movable pliers leg, which acts on the first crimping jaw in particular, preferably indirectly via the drive plunger. Accordingly, an at least approximately constant actuation path of the manual pliers results for the user, in particular independently of the diameter of the compact to be pressed, for example wire-end ferrule. The differently sized displacement distances that occur as a function of, for example, a diameter of the compact, in particular of the first crimping jaw, are made possible by the second crimping jaw, which can be moved back against the spring force. Accordingly, the spring preferably has a stretch-compensating effect.

Furthermore, as a result of the action of the spring on the second crimping jaw, after a crimping process has been carried out and the first crimping jaw has been shifted back associated therewith, it is shifted back into a base position, which may have a stop limit. There is no need for the second crimping jaw to be dragged along via the first crimping jaw in order to shift the second crimping jaw back.

A further solution to the problem can be given, in particular in the case of hand-held pliers that are designed for combined stripping and crimping, in that a crimping opening formed by the crimping jaws opens into the narrow side.

With the usual handling of the hand-held pliers, this results in a crimping area that can be assigned to an underside or an upper side of the hand-held pliers. Thus, in terms of handling, it can be favourable In this way, a cable provided with a ferrule in the area of a stripped end can be inserted into the crimping area of the manual pliers on the underside, with the cable end pointing essentially vertically upwards with the ferrule plugged on, after which the desired crimping is carried out by pliers-like actuation of the pliers legs. The manual pliers are in their orientation, which corresponds to normal handling.

The features of the independent claims described above are important both individually and in any combination with one another, with features of an independent claim being able to be combined with the features of a further independent claim or with features of a number of independent claims, and also with only individual features of one or more of the further independent claims.

Further features of the invention are explained below, also in the description of the figures, often in their preferred association with the subject matter of claim 1 and/or one or more of the further independent claims or with features of further claims. However, they can also be of importance in an assignment to only individual features of claim 1 and/or one or more of the further independent claims or in each case independently.

Thus, according to a possible further embodiment, the first and second crimping jaws can be arranged in a common linear guide. If necessary, the linear guide can also form the crimping jaw receptacle for the second crimping jaw. The drive plunger, which is preferably connected to the movable pliers limb or is acted upon via the movable pliers limb, has a preferably linearly displacing effect on the first crimping jaw, with the second crimping jaw possibly also being displaced against the spring force within the linear guide in the course of crimping via the first crimping jaw and the compact can. The linear guide can be formed by design means directly inside the hand tool, in particular a housing of the hand tool. With reference to a cross-section transverse to the linear displacement direction of the first crimping jaw, for example, lateral guidance of both crimping jaws can result, more preferably guidance essentially surrounding the entire circumference of the crimping jaws.

In a further embodiment, the hand-held pliers can also be designed as stripping pliers, with which the same hand-held pliers can first be used to strip a free cable end and then to crimp this stripped cable end with, for example, a ferrule.

In order in particular to ensure complete crimping, i.e. completion of the crimping process, and/or a possible stripping process, the pliers legs can interact via a forced lock according to a possible development. This forced lock preferably allows movement, in particular pivoting movement, of the movable shank in only one direction when the pliers are actuated, namely preferably the closing direction of the pliers, up to a position in which the pliers shank is securely crimped and/or stripped. Only then does the forced lock release, preferably without further additional action by the user on the forced lock, for the movable pliers arm to be moved back into the basic position and thus for the first crimping jaw in particular to be moved back into the basic position.

In a further embodiment, the forced lock can also be released manually by the user after the initiation of a crimping or stripping process, but before the self-release of the lock is reached, preferably by a corresponding action on the forced lock. This action can optionally take place without tools.

According to a preferred embodiment, the compulsive lock can act between a control lever and the movable tong limb. In the course of the actuation of the tongs, the control lever is preferably acted upon via the movable tong limb, but is preferably held so that it can pivot relative to the movable tong limb. This mobility of the control lever relative to the movable limb of the pliers is used to form the forced lock.

In a further refinement, the forced lock can bring about a ratchet-like interaction between the control lever and the movable pliers arm, which can optionally also be perceptible as an acoustic signal in addition to the backstop that is set up.

character list

• 1 eine Handzange der in Rede stehenden Art in perspektivischer Darstellung;
• 2 in perspektivischer Detaildarstellung eine Zuordnungsstellung eines zu vercrimpenden Kabelendes zu einer Crimpöffnung der Handzange;
• 3 den Schnitt gemäß der Schnittebene III in 1, die unbelastete Grundstellung der Handzange betreffend;
• 4 eine der 3 entsprechende Schnittdarstellung, jedoch eine Zwischenstellung im Zuge einer Vercrimpung betreffend;
• 5 die Herausvergrößerung des Bereichs V in 4;
• 6 eine Folgedarstellung zu der Darstellung in 5, eine Stellung nach durchgeführter Vercrimpung betreffend;
• 7 eine der 5 entsprechende Darstellung, jedoch bei einer Vercrimpung eines Presslings mit gegenüber dem in 5 dargestellten Pressling verringertem Durchmesser;
• 8 eine weitere der 5 entsprechende Darstellung, bei weiter verringertem Pressling-Durchmesser gegenüber der Darstellung in 7;
• 9 eine Folgedarstellung zu 3, die Nutzung der Handzange im Zuge eines Abisoliervorgangs betreffend;
• 10 die Herausvergrößerung des Bereiches X in 9;
• 11 eine Folgedarstellung zu 10, eine Zwischenstellung im Zuge des Abisoliervorgangs betreffend;
• 12 eine Folgedarstellung zu 11, betreffend eine Stellung nach Vollendung des Abisoliervorgangs.

The invention is explained in more detail below with reference to the attached drawing, which, however, merely represents an exemplary embodiment. It shows:

• 1 a hand pliers of the type in question in a perspective view;
• 2 in a perspective detail view an association position of a cable end to be crimped with a crimping opening of the hand tool;
• 3 the section according to section plane III in 1 , concerning the unloaded basic position of the hand tool;
• 4 one of the 3 Corresponding sectional view, but concerning an intermediate position in the course of crimping;
• 5 the enlargement of the area V in 4 ;
• 6 a subsequent representation to the representation in 5 , concerning a position after crimping has been carried out;
• 7 one of the 5 Corresponding representation, but with a crimping of a compact with opposite to the in 5 compact shown reduced diameter;
• 8th another of the 5 Corresponding representation, with a further reduced pellet diameter compared to the representation in 7 ;
• 9 a follow-up presentation 3 , concerning the use of the hand tool in the course of a stripping process;
• 10 the enlargement of the area X in 9 ;
• 11 a follow-up presentation 10 , concerning an intermediate position in the course of the stripping process;
• 12 a follow-up presentation 11 , concerning a position after completion of the stripping process.

Description of the embodiments

Shown and described, first with reference to 1 , a hand pliers 1 with a pliers head K, having two pliers jaws 2, 3, and two pliers legs 4, 5. The pliers jaws 2 and 3 delimit a pliers mouth M in a front side T of the hand pliers 1.

The pliers jaw 2 , which is referred to below as fixed, is connected directly and firmly to the pliers limb 4 via a cheek area 6 .

In the cheek area 6, the stripping pliers 1 offers a bearing for a rotary axis 7 with a geometric axis x, about which the pliers jaw 3, which is movable further below, is rotatably mounted.

The mounting of the movable jaw 3 on the axis of rotation 7 results in the area of a shoulder area of the movable jaw 3 extending in the direction of the axis x in projection to the cheek area 6 of the fixed jaw 3.

The geometric axis x preferably extends perpendicularly to a broad side B of the pliers head K, to which broad side B essentially perpendicular and in the usual handling position narrow sides S run on the top and bottom, whose extension length a viewed perpendicular to a broad side B is one third or less , for example down to a tenth or less, which can correspond to the extension length b of the broadside B viewed transversely to the axis x.

The forceps mouth open position, for example as shown in 3 , can be stop-limited.

The further limb 5 of the pliers is pivot-mounted about a further geometric axis y, which is aligned parallel to the axis of rotation 7 or its geometric axis x. The relevant physical axis is also held in the cheek area 6 of the fixed jaw 2 or the fixed limb 4 of the pliers.

The movable tong arm 5 can be pivoted about the axis y in the direction of the stationary tong arm 4, with a pivoting displacement of the movable tong arm 5 in the direction of the stationary tong arm 4 causing a coupled pivoting movement of the movable tong jaw 3 about the axis x.

For this purpose, a preferably angled control lever 8 is attached to the movable handle part 5, the free end of which, in the exemplary embodiment shown with a roller 9 preferably arranged in this area, rests against a bracket 10 of the shoulder area of the movable jaw 3, which is designed in the manner of a link, for example .

The control lever 8 is pivotably mounted on the movable tong limb 5 . The relevant pivot axis z preferably runs parallel to the geometric axis of rotation x.

In addition, the movable handle part 5 acts via a link 11 on a cutting edge 12 pivoted in the cheek area 6 of the fixed jaw 2 . The cutting edge 12 is mounted in the cheek area 6, with the relevant geometric axis also being parallel lel runs to the geometric axis of rotation x of the movable jaw 3.

The cutting edge 12 is exposed in a cut-free area 13 of the cheek area 6 in the narrow side S, which preferably points downwards in normal handling, and is preferably used for cutting a cable to length, for example a cable to be stripped in a further step.

Due to the pivoting movement of the cutting edge 12 in the course of the pivoting displacement of the movable pliers arm 5 in the direction of the fixed pliers arm 4, any cable lying in the area 13 is supported by the pivoting Blade 12 severed.

Facing the front side T, in particular the mouth of the pliers M, the manual pliers 1 have a stripping device A which is coupled to the movement of the pliers limb 5 and the control lever 8 .

The hand-held pliers 1 also have a crimping device C, facing a narrow side S that is lower in normal handling, in which a cable 14 stripped, for example, with the stripping device A is pressed in the area of the subsequently exposed cores 15 with a compact 16, in particular in the form of a wire-end ferrule can.

The crimping device C can, as is also preferred, be provided between the region 13 for cutting a cable and the end face T, for which purpose a crimping opening 18 is left in the jaw wall 17 of the fixed jaw 2 forming the relevant narrow side S.

In the stationary pliers jaw 2 , a crimping jaw receptacle 19 is further assigned to the crimping opening 18 , in which a first crimping jaw 20 and a second crimping jaw 21 are accommodated together and linearly guided. For example, in 5 The illustrated direction of displacement r of the crimping jaws 20 and 21 can, as further preferred, be essentially in the same direction as an alignment and direction of displacement of a pull rod 22 that is pivotably connected to the control lever 8 and interacts with the stripping device A.

A spring 23, here a cylinder compression spring, is preferably arranged between this pull rod 22 and the extension arm 10, which moves the movable tong arm 5 in the direction of the in 3 illustrated basic position charged. In this basic position, the movable jaw 3 can also be held in a basic position that is limited by a stop.

In the exemplary embodiment shown, the second crimping jaw 21 is arranged facing the front side T, starting from the crimping opening 18, and can only be displaced linearly in the crimping jaw receptacle 19 indirectly in the course of a crimping process. The first crimping jaw 20, on the other hand, can be linearly displaced immediately as a result of the action of a drive plunger 24 in the crimping jaw receptacle 19, which drive plunger 24 can pivot both on the first crimping jaw 20 and on the link 11 or on the cutting edge 12 about a preferably parallel to the axes x and/or or y and/or z aligned axes 25 and 26 is mounted. The drive plunger 24 is formed like a link.

The two crimping jaws 20 and 21 can, as also preferred, be provided with partially comb-like interlocking ribs 27 which are preferably approximately triangular in shape when viewed in the direction of an insertion direction of the cable 4 provided with the compact 16 into the crimping opening 18 . This can be in accordance with an unloaded basic position 3 result in a crimping jaw 28 that is rectangular in plan, in particular square (compare, for example, 2 ).

With regard to the rib-like configuration of the crimping jaws 20 and 21 and the configuration of the crimping mouth 28 that results from this, reference is made, for example, to FIG DE 10 2018 101 159 A1 referred. The content of this DE document is hereby included in its entirety in the disclosure of the present invention, also for the purpose of including features of this DE document in claims of the present invention.

The second crimping jaw 21 guided in the crimping jaw receptacle 19 is supported in a bottom region of the crimping jaw receptacle 19 via a spring 29 . This can, as is also preferred, be an elastic, restorable polyurethane spring which can be correspondingly compressed when acted upon, building up a restoring spring force.

When actuated, the pliers legs 4 and 5 preferably interact via a forced lock 30 . The latter acts preferably both with regard to the crimping device C and with regard to the stripping device A, possibly also with regard to the cutting device for cutting cables using the cutting edge 12.

The forced lock 30 has a pawl 31 which is pivotably mounted on the movable pliers arm 5 and a pawl 31 with the pawl 31 in the course of handling the hand tool 1 cooperating ratchet projection 32 on the control lever 8. The pawl 31 is a tension spring 33 in a basic orientation, for example according to 3 burdened.

The pawl 31, which can be pivoted about an axis 34 aligned parallel to the axes described above, has a pawl finger 35 that protrudes essentially radially, for ratcheting interaction with a plurality of latching steps 36, for example, as shown, three latching steps 36 of the ratchet projection 32.

In the circumferential direction with respect to the axis 34 offset to the ratchet finger 35, an actuating finger 37 can be provided, via which the ratchet 31 can optionally be pivotally displaced into a position releasing the ratchet projection 32.

With regard to the pivotability of the pawl 31, there can be a limit stop in one and/or the other pivoting direction.

As a result of the forced lock 30, it is ensured with normal handling of the hand-held pliers 1 that the crimping process or the stripping process, if necessary the cutting process, is completely completed, corresponding to a preferred end position of the respective tool being reached. Before this end position is reached, the interaction of the pawl 31 and the ratchet projection 32 prevents the moveable limb 5 of the pliers from being displaced back in the direction of the basic position and thus also prevents the movable pliers jaw 3 and/or the crimping jaws 20 and 21 from being moved back into the basic position. In these intermediate handling positions, the ratchet finger 35 acts in a locking manner with one of the latching steps 36 .

As a result of the arrangement of the forced lock 30, there is a displacement path of the first crimping jaw 20 connected to the drive plunger 24 that is essentially independent of a thickness d of the compact 16 viewed in the displacement direction r of the crimping jaws 20 and 21. The displacement path varies depending on the thickness d of the The arrangement of the spring 29 makes it possible for the second crimping jaw 21 to move linearly with the first crimping jaw 20 in the direction of displacement r. The corresponding support of the second crimping jaw 21 via the spring 29 allows a different linear displacement of the second crimping jaw 21 over the differential path, whereby, according to a preferred embodiment, the spring force of the spring 29 is particularly strong in the initial position, which is preferably stop-limited with respect to the second crimping jaw 21 3 can be sufficiently high in order to be able to absorb the pressing forces that occur during normal pressing and that act via the first crimping jaw 20 . A displacement of the second crimping jaw 21 counter to the restoring force of the spring 29 can only take place when the crimping is complete or, alternatively, can also be accompanied by the crimping.

Along with the different possible displacement paths of the second crimping jaw 21 depending on the thickness d of the compact 16 to be pressed, there are different lengths 1 of the spring 29 in the final crimping position, with this length 1 reducing as the thickness d of the compact 16 increases (compare in particular the 6 until 8th ). Correspondingly, as the thickness d of the compact 16 increases, there is greater compression of the spring 29 to compensate for the displacement path forced by the forced lock 30, in particular of the second crimping jaw 21.

In the course of the crimping process, a center point of the crimping mouth 28 that results between the crimping jaws moves relative to the fixed jaw 2.

The two pliers jaws 2 and 3 also each have an outer clamping jaw 38, 39 for clampingly gripping a cable 14 inserted into the pliers mouth M to strip a free end of the insulation, see also 9 until 10 .

In addition, with regard to the arrangement of the clamping jaws 38 and 39 relative to the geometric axis of rotation x, inner cutting jaws 40, 41 are provided, each with cutting edges 42, 43 fixed in the clamping jaws 38 and 39 facing the end region. The cutting edges 42 and 43 are arranged facing each other.

When the pair of cutting jaws is in the ready-to-operate arrangement, the geometric axis of the pivot axis 44 preferably extends parallel to the axis of rotation x of the movable jaw 3.

A spring 45 is arranged between the cutting jaws 40 and 41, which spring 45 loads the cutting jaws 40 and 41 into an open position spaced apart from one another.

In the illustrated embodiment, a stop carriage 46 that can be locked in place in the extension direction of the cutting jaw 41 is provided on the lower cutting jaw 41, ie on the cutting jaw 41 associated with the fixed jaw 2, for offering a stop for the free end of the cable inserted into the jaw M of the pliers 14 to define the length of the area to be stripped.

The cutting jaws 40 and 41 are guided laterally in the respective associated jaws 2, 3 to enable proper sliding displacement of the cutting jaws 40 and 41 in the direction of their longitudinal extent, i.e. starting from an initial position associated with the clamping jaws 38 and 39 in the direction of a position relative to the clamping jaws 38 and 39 spaced end position and displaced in the direction of the axis of rotation x and from this end position back to the starting position.

For this displacement of the cutting jaws 40, 41, the pull rod 22 is provided. The cutting jaws 40, 41 can be displaced from an initial position to an end position against the force of the spring 23 acting on the pull rod 22 when the handle parts 4, 5 are pressed together.

The pull rod 22 is also guided through the physical axis of rotation 7 , passing through a slot-like recess 47 on the pull rod side.

Assigned to the pivot axis 44 of the pair of cutting jaws, the pull rod 22 has an entry opening 48 directed essentially in the direction of the fixed jaw 2 and also essentially in the closing or opening direction of the cutting jaws 40 and 41 . This is created by an overall hook-like design of the relevant end area of the pull rod 22.

In the usual position of use of the manual pliers 1, the pivot axis 44 of the pair of cutting jaws lies in this insertion opening 48, so that a sliding displacement of the pull rod 22 made possible by the slot-like design of the recess 47 leads to a corresponding sliding displacement of the pair of cutting jaws.

This sliding displacement of the pull rod 22 is made possible by coupling it to the control lever 8 mounted on the movable handle part 5, which control lever 8 is coupled with a pull axis 55 aligned parallel to the axis of rotation 7, which in the exemplary embodiment shown can also form the axis for the roller 9, into a bore 49 on the tie rod side engages.

Each cutting jaw 40, 41 is supported in the associated pincer jaw 2, 3 via a link part 50, 51, which link part 50, 51 can in turn be supported on a link fixed to the jaws.

This indirect support of the cutting jaws 40,41 on the respective jaw 2, 3 is, for example, from EP 1 557 920 B1 famous. With regard to the mode of action, reference is also made to the content of this patent specification.

In the course of the compression of the pliers legs 4 and 5, the pliers mouth M is first closed as a result of a corresponding pivoting displacement of the movable pliers jaw 3 with superimposed closing of the pair of cutting jaws (cf 9 and 10 ). The cutting edges 42 and 43 of the cutting jaws 40 and 41 cut into the insulating sheath of the cable 14, with an incision depth that preferably adjusts automatically as a function of the cable thickness.

With further pivotal displacement of the movable tongs limb 5 in the direction of the fixed tongs limb 4 as shown in FIG 11 the roller 9 of the boom 10 slides along the facing and above-described end face of the boom 10, overcoming the restoring force of the spring 23 acting on the pull rod 22. The pull rod 22 is pulled linearly in a direction away from the pliers mouth M, dragging along the pair of cutting jaws . This results in the stripping of the insulation section 54, which has been separated by cutting using the cutters 42 and 43, from the cable 14.

When the pliers arms 4 and 5 are pressed together further, the boom-side roller 9 leaves the supporting position on the boom 10 of the movable pliers jaw 3, which pivots back towards its open basic position, with simultaneous opening of the pliers mouth M and the pair of cutting jaws . This is partly due to the restoring force of the spring 45 provided between the cutting jaws 40 and 41.

The end of the stripped cable 14 is exposed for removal from the hand tool 1 . The separated and stripped insulation section 54 is free for removal or, if necessary, falls out of the pliers mouth M.

Then the stripped end of the cable, which is provided with a ferrule, for example, can be crimped or pressed with the same hand tool 1 .

The above statements serve to explain the inventions covered by the application as a whole, which also independently develop the prior art at least through the following combinations of features, whereby two, several or all of these feature combinations can also be combined, namely:

A pair of hand-held pliers, which is characterized in that the second crimping die 21 can be moved back against spring force in a crimping-jaw receptacle 19 of the hand-held pliers 1 .

A pair of hand pliers, which is characterized in that a crimping opening 18 formed by the crimping jaws 20, 21 opens into the narrow side S.

A hand tool characterized in that the first and second crimping jaws 20, 21 are arranged in a common linear guide.

A hand-held pliers, which is characterized in that the hand-held pliers 1 are further designed as wire strippers.

A manual pliers, which is characterized in that the pliers legs 4, 5 interact via a forced lock 30.

A manual pliers, which is characterized in that the forced lock 30 acts between a control lever 8 and the movable pliers arm 5 .

All disclosed features are essential to the invention (by themselves, but also in combination with one another). The disclosure of the application also includes the disclosure content of the associated/attached priority documents (copy of the previous application) in full, also for the purpose of including features of these documents in claims of the present application. The subclaims, even without the features of a referenced claim, characterize with their features independent inventive developments of the prior art, in particular for making divisional applications on the basis of these claims. The invention specified in each claim can additionally have one or more of the features specified in the above description, in particular with reference numbers and/or specified in the list of reference numbers. The invention also relates to configurations in which individual features mentioned in the above description are not implemented, in particular if they are clearly superfluous for the respective intended use or can be replaced by other technically equivalent means.

reference list

1

hand pliers

2

pincer jaw

3

pincer jaw

4

pliers handle

5

pliers handle

6

cheek area

7

axis of rotation

8th

control lever

9

role

10

boom

11

handlebars

12

cutting edge

13

Area

14

cable

15

Vein

16

compact

17

jaw wall

18

crimp opening

19

crimp jaw holder

20

first crimp jaw

21

second crimping die

22

pull bar

23

feather

24

drive tappet

25

axis

26

axis

27

rib

28

crimp jaw

29

feather

30

lockdown

31

pawl

32

ratchet protrusion

33

tension spring

34

axis

35

latch finger

36

rest stage

37

actuating fingers

38

jaw

39

jaw

40

cutting jaw

41

cutting jaw

42

cutting edge

43

cutting edge

44

pivot axis

45

feather

46

stop slide

47

recess

48

entry opening

49

drilling

50

scenery part

51

scenery part

52

handlebars

53

handlebars

54

isolation section

55

train axis

a

length

b

length

i.e

thickness

1

length

right

shift direction

A

stripping device

B

broadside

C

crimping device

K

pliers head

M

pincer mouth

S

narrow side

T

face

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 102018101159 A1 [0003, 0041]
• EP 0540880 B1 [0004]
• US5500998 [0004]
• EP 1557920 B1 [0064]

Claims (7)

Hand-held pliers (1) designed to carry out a crimping operation, having a fixed and a movable pliers arm (4, 5) and a first and a second crimping jaw (20, 21), the first crimping jaw (20) being acted upon by a drive plunger (24), characterized in that the second crimping jaw (21) can be moved back against spring force in a crimping jaw receptacle (19) of the manual pliers (1). Hand pliers (1) with a pliers head which is formed by pliers jaws (2, 3) which can be pivoted relative to one another and which interact, for example, for stripping, the pliers head having a broad side (B), a narrow side (S) and a front side (T), wherein furthermore, a pivot axis (x) of the pliers jaws (2, 3) runs at right angles to an extension of the broad side (B) and the narrow side (S) extends approximately at right angles to the broad side (B), with crimping jaws (20, 21) also leading through a crimping are provided, or hand tool (1). claim 1 , characterized in that a crimping opening (18) formed by the crimping jaws (20, 21) opens into the narrow side (S). Hand pliers according to one of the preceding claims, characterized in that the first and second crimping jaws (20, 21) are arranged in a common linear guide. Hand pliers according to one of the preceding claims, characterized in that the hand pliers (1) are also designed as stripping pliers. Hand pliers according to one of the preceding claims, characterized in that the limbs (4, 5) of the pliers interact via a forced lock (30). Hand pliers according to one of the preceding claims, characterized in that the forced lock (30) acts between a control lever (8) and the movable pliers arm (5). Device or method, characterized by one or more of the characterizing features of one of the preceding claims.

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